"Key lime" meaning in English

{
  "etymology_templates": [
    {
      "args": {
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        "2": "es",
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      "expansion": "Spanish cayo",
      "name": "bor"
    }
  ],
  "etymology_text": "From Keys (“the Florida Keys”), from key (“an island in a chain of islands”), variant of cay, from Spanish cayo.",
  "forms": [
    {
      "form": "Key limes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Key lime (plural Key limes)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
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          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Citrus subfamily plants",
          "orig": "en:Citrus subfamily plants",
          "parents": [
            "Rue family plants",
            "Shrubs",
            "Trees",
            "Sapindales order plants",
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          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "Key lime pie"
        }
      ],
      "glosses": [
        "A small yellow (when ripe, usually sold green) lime, of hybrid Citrus × aurantiifolia, especially those from southern Florida."
      ],
      "id": "en-Key_lime-en-noun-gEKjJ~8F",
      "links": [
        [
          "Florida",
          "Florida"
        ]
      ],
      "synonyms": [
        {
          "sense": "Citrus × aurantiifolia",
          "word": "West Indian lime"
        },
        {
          "sense": "Citrus × aurantiifolia",
          "word": "bartender’s lime"
        },
        {
          "sense": "Citrus × aurantiifolia",
          "word": "Omani lime"
        },
        {
          "sense": "Citrus × aurantiifolia",
          "word": "Mexican lime"
        }
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "Mòxīgē láiméng",
          "sense": "Citrus × aurantifolia",
          "word": "墨西哥萊檬 /墨西哥莱檬"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Citrus × aurantifolia",
          "word": "limetti"
        },
        {
          "code": "hi",
          "lang": "Hindi",
          "roman": "kāġzī nīmbū",
          "sense": "Citrus × aurantifolia",
          "word": "काग़ज़ी नींबू"
        },
        {
          "code": "is",
          "lang": "Icelandic",
          "sense": "Citrus × aurantifolia",
          "tags": [
            "neuter"
          ],
          "word": "súraldin"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "Citrus × aurantifolia",
          "tags": [
            "masculine"
          ],
          "word": "lime"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "Citrus × aurantifolia",
          "tags": [
            "feminine"
          ],
          "word": "lima"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "Citrus × aurantifolia",
          "tags": [
            "feminine"
          ],
          "word": "limetta"
        }
      ],
      "wikipedia": [
        "Florida Keys",
        "Key lime"
      ]
    }
  ],
  "word": "Key lime"
}

{
  "derived": [
    {
      "word": "Key lime pie"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "es",
        "3": "cayo"
      },
      "expansion": "Spanish cayo",
      "name": "bor"
    }
  ],
  "etymology_text": "From Keys (“the Florida Keys”), from key (“an island in a chain of islands”), variant of cay, from Spanish cayo.",
  "forms": [
    {
      "form": "Key limes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "Key lime (plural Key limes)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Citrus subfamily plants"
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      "glosses": [
        "A small yellow (when ripe, usually sold green) lime, of hybrid Citrus × aurantiifolia, especially those from southern Florida."
      ],
      "links": [
        [
          "Florida",
          "Florida"
        ]
      ],
      "wikipedia": [
        "Florida Keys",
        "Key lime"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "Citrus × aurantiifolia",
      "word": "West Indian lime"
    },
    {
      "sense": "Citrus × aurantiifolia",
      "word": "bartender’s lime"
    },
    {
      "sense": "Citrus × aurantiifolia",
      "word": "Omani lime"
    },
    {
      "sense": "Citrus × aurantiifolia",
      "word": "Mexican lime"
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "Mòxīgē láiméng",
      "sense": "Citrus × aurantifolia",
      "word": "墨西哥萊檬 /墨西哥莱檬"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Citrus × aurantifolia",
      "word": "limetti"
    },
    {
      "code": "hi",
      "lang": "Hindi",
      "roman": "kāġzī nīmbū",
      "sense": "Citrus × aurantifolia",
      "word": "काग़ज़ी नींबू"
    },
    {
      "code": "is",
      "lang": "Icelandic",
      "sense": "Citrus × aurantifolia",
      "tags": [
        "neuter"
      ],
      "word": "súraldin"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "Citrus × aurantifolia",
      "tags": [
        "masculine"
      ],
      "word": "lime"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "Citrus × aurantifolia",
      "tags": [
        "feminine"
      ],
      "word": "lima"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "Citrus × aurantifolia",
      "tags": [
        "feminine"
      ],
      "word": "limetta"
    }
  ],
  "word": "Key lime"
}